/**
* omap_vp_enable() - API to enable a particular VP
* @voltdm: pointer to the VDD whose VP is to be enabled.
*
* This API enables a particular voltage processor. Needed by the smartreflex
* class drivers.
*/
void omap_vp_enable(struct voltagedomain *voltdm)
{
struct omap_vp_instance *vp;
u32 vpconfig;
if (!voltdm || IS_ERR(voltdm)) {
pr_warning("%s: VDD specified does not exist!\n", __func__);
return;
}
vp = voltdm->vp;
if (!voltdm->read || !voltdm->write) {
pr_err("%s: No read/write API for accessing vdd_%s regs\n",
__func__, voltdm->name);
return;
}
/* If VP is already enabled, do nothing. Return */
if (vp->enabled)
return;
vp_latch_vsel(voltdm);
/* Enable VP */
vpconfig = voltdm->read(vp->vpconfig);
vpconfig |= vp->common->vpconfig_vpenable;
voltdm->write(vpconfig, vp->vpconfig);
vp->enabled = true;
}
/**
* omap_vp_enable() - API to enable a particular VP
* @voltdm: pointer to the VDD whose VP is to be enabled.
*
* This API enables a particular voltage processor. Needed by the smartreflex
* class drivers.
*/
void omap_vp_enable(struct voltagedomain *voltdm)
{
struct omap_vdd_info *vdd;
u32 vpconfig;
u16 mod;
if (!voltdm || IS_ERR(voltdm)) {
pr_warning("%s: VDD specified does not exist!\n", __func__);
return;
}
vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
if (!vdd->read_reg || !vdd->write_reg) {
pr_err("%s: No read/write API for accessing vdd_%s regs\n",
__func__, voltdm->name);
return;
}
mod = vdd->vp_reg.prm_mod;
/* If VP is already enabled, do nothing. Return */
if (vdd->vp_enabled)
return;
vp_latch_vsel(vdd);
/* Enable VP */
vpconfig = vdd->read_reg(mod, vdd->vp_offs.vpconfig);
vpconfig |= vdd->vp_reg.vpconfig_vpenable;
vdd->write_reg(vpconfig, mod, vdd->vp_offs.vpconfig);
vdd->vp_enabled = true;
}
